# NAICS 213113: Support Activities for Coal Mining

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [213113 Support Activities for Coal Mining](https://bidrover.com/naics/213113)

This U.S. industry comprises establishments primarily engaged in providing support activities for coal mining (except geophysical surveying and mapping, site preparation, construction, and transportation activities) on a contract or fee basis. Exploration for coal is included in this industry.

- NAICS code: 213113
- Title: Support Activities for Coal Mining
- Sector: 21 Mining, Quarrying, and Oil and Gas Extraction
- Subsector: 213 Support Activities for Mining
- Industry group: 2131 Support Activities for Mining
- NAICS industry: 21311 Support Activities for Mining
- SBA size standard: $27.5 million average annual receipts
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 213113?

NAICS 213113 is "Support Activities for Coal Mining" in the 2022 North American Industry Classification System, in sector 21 (Mining, Quarrying, and Oil and Gas Extraction). This U.S. industry comprises establishments primarily engaged in providing support activities for coal mining (except geophysical surveying and mapping, site preparation, construction, and transportation activities) on a contract or fee basis. Exploration for coal is included in this industry.

### What is the SBA size standard for NAICS 213113?

A business is small under NAICS 213113 at or below $27.5 million average annual receipts, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 213113?

No open bid in BidRover cites NAICS 213113 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.

### How do I get alerts for NAICS 213113 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [541360 Geophysical Surveying and Mapping Services](https://bidrover.com/naics/541360)
- [238910 Site Preparation Contractors](https://bidrover.com/naics/238910)
- [213111 Drilling Oil and Gas Wells](https://bidrover.com/naics/213111)
- [213112 Support Activities for Oil and Gas Operations](https://bidrover.com/naics/213112)
- [213114 Support Activities for Metal Mining](https://bidrover.com/naics/213114)
- [213115 Support Activities for Nonmetallic Minerals (except Fuels) Mining](https://bidrover.com/naics/213115)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.